And since it mentions India, the mathematician Ramanujan was a vegetarian (not vegan) and I'm not sure if people can argue it held him back. I guess the article

And since it mentions India, the mathematician Ramanujan was a vegetarian (not vegan) and I'm not sure if people can argue it held him back. I guess the article does it self a great disservice by combining Vegan with Vegetarian all over the place and all based on one study on children from a poor nation who might even be suffering from calorie/protein deficits. Still, Vegans do have to be careful as its really easy to fall in to deficiencies of various kinds. Its especially difficult for Western Vegetarians or Vegans compared to Indians as Indian vegetarians rely on their traditional meal combinations to ensure various nutrient needs are taken care of (unintentionally through tradition/culture).